Philips 74HC7046A
The 74HC/HCT7046 are high-speed Si-gate CMOS devices and are specified in compliance with JEDEC standard no. The 74HC/HCT7046 are phase-locked-loop circuits that comprise a linear voltage-controlled oscillator (VCO) and two different phase comparators (PC1 and PC2) with a common signal input amplifier and a common comparator input. The lock detector capacitor must be connected between pin 15 (CLD) and pin 8 (GND).| Part No. | 74HC7046A |
|---|---|
| Datasheet | 74HC7046A Download |
| Manufacturer |  Philips |
| Description | Phase-locked-loop |
| Buy | Stock & Price |
FEATURES
● Low power consumption● Centre frequency up to 17 MHz (typ.) at VCC = 4.5 V
● Choice of two phase comparators: EXCLUSIVE-OR; edge-triggered JK flip-flop;
● Excellent VCO frequency linearity
● VCO-inhibit control for ON/OFF keying and for low standby power consumption
● Minimal frequency drift
● Operation power supply voltage range: VCO section 3.0 to 6.0 V digital section 2.0 to 6.0 V
● Zero voltage offset due to op-amp buffering
● Output capability: standard
● ICC category: MSI
GENERAL DESCRIPTION
7. A lock detector is provided and this gives a HIGH level at pin 1 (LD) when the PLL is locked. The value of the CLD capacitor can be determined, using information supplied in Fig.32. The input signal can be directly coupled to large voltage signals, or indirectly coupled (with a series capacitor) to small voltage signals. A self-bias input circuit keeps small voltage signals within the linear region of the input December 1990 amplifiers. With a passive low-pass filter, the “7046” forms a second-order loop PLL.
